CountyTax

Montana property tax rates by county

Montana · #32 of 52 · 56 counties

0.72%state benchmark

Median annual property tax $2,693 · median home value $375,800

Below the U.S. benchmark 0.94%. First half due Nov 30, Second half due May 31.

When it's due in Montana

All states
First half
Due Nov 30
Late after Dec 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill.
Second half
Due May 31
Late after Jun 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill.
Late penalty2% penalty plus 5/6 of 1% per month (10% annually) interest until paid (Mont. Code Ann. § 15-16-101(2))
Appeal windowwithin 30 days of mailing date on assessment notice to County Tax Appeal Board (Mont. Code Ann. § 15-15-102)

First half due November 30 at 5:00 p.m. (delinquent Dec 1); second half due May 31 at 5:00 p.m. (delinquent June 1). Regular annual schedule; tax year: calendar 2026, bills mailed October. Source: Mont. Code Ann. § 15-16-101, rules checked 2026-09-19. Confirm the amount and deadline on your official tax bill.

Counties, highest rate first

Benchmark = median real estate taxes paid ÷ median home value, ACS 2020–2024 5-year. Counties where the Census reports a range ("less than $200", "$10,000 or more") get no rate.